Man killed by hit-run driver on I-280 in S.F.

A man was killed in a hit-and-run accident early today on Interstate 280 in San Francisco, authorities said.

The victim, a 25-year-old man from El Salvador whose name wasn't immediately released, was hit by at least two cars on southbound I-280 near San Jose Avenue about 2:10 a.m., said California Highway Patrol Officer Shawn Chase. Both cars drove away without stopping.

Witnesses saw the man walking in the slow lane before he was hit, Chase said. It was unclear why he was on the freeway, the CHP said.